test: Add test for Unstructured pptx document type

Added pptx example file and tested Unstructured pptx document type handling

Test COG-685

cognee/tests/integration/documents/UnstructuredDocument_test.py

@@ -0,0 +1,22 @@
+import os
+import uuid
+
+from cognee.modules.data.processing.document_types.UnstructuredDocument import UnstructuredDocument
+
+def test_UnstructuredDocument():
+    docx_file_path = os.path.join(
+        os.sep,
+        *(os.path.dirname(__file__).split(os.sep)[:-2]),
+        "test_data",
+        "example.pptx",
+    )
+
+    pptx_document = UnstructuredDocument(
+        id=uuid.uuid4(), name="example.pptx", raw_data_location=docx_file_path, metadata_id=uuid.uuid4(),
+        mime_type="application/vnd.openxmlformats-officedocument.presentationml.presentation"
+    )
+
+    for paragraph_data in pptx_document.read(chunk_size=1024):
+        assert 19 == paragraph_data.word_count, f' 19 != {paragraph_data.word_count = }'
+        assert 104 == len(paragraph_data.text), f' 104 != {len(paragraph_data.text) = }'
+        assert 'sentence_cut' == paragraph_data.cut_type, f' sentence_cut != {paragraph_data.cut_type = }'